'Hello World!' Rosetta wakes up and says hello from deep space

After almost three years in hibernation, the European comet-chasing spacecraft Rosetta has woken up and sent its first signal back to Earth.

Associated article


How to spot bowel cancer symptoms

In the last 30 years in Ireland, the number of bowel cancer cases under-50 has doubled, according to Bowel Cancer Ireland. Video: Rebecca Daly / Zara Morgan


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